一、引言十五年来世界许多研究所研制了一些新设计的标准气压计、压力—气压计和压力计。其主要发展在于水银表面高度的检测手段。这些文献中所介绍的一些压力计准确度可达1×10~(-6),但是正如 Tilford 所提到的,这些压力计有如下一些缺点:制造和操作复杂,温度控制困难,以及不能连续跟踪压力的变化。为了克服这些缺点,并提高高精度 I. INTRODUCTION In the past 15 years, many institutes in the world have developed some newly designed standard barometers, pressure barometers and pressure gauges. The main development lies in the mercury surface height detection means. Some of the manometers described in these documents are accurate to 1 × 10 -6 accuracy, but as Tilford mentions, these gauges have the following disadvantages: complex manufacturing and handling, difficulty in temperature control, and failure to continue Track pressure changes. In order to overcome these shortcomings and improve high precision